package zhao.ben.quan.jobs;

import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisPool;
import zhao.ben.quan.constant.RedisConstant;
import zhao.ben.quan.utils.QiniuUtils;

import java.util.Set;

public class ClearImgJob {

    @Autowired
    private JedisPool jedisPool;

    public void clearImg() {
        //根据redis中保存的两个set集合进行差值计算,获得垃圾图片名称集合
        Set<String> set = jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES, RedisConstant.SETMEAL_PIC_DB_RESOURCES);

        if(set!=null){
            for (String picName : set) {
                //删除七牛云服务器上的图片
                QiniuUtils.deleteFileFromQiniu(picName);

                //从redis集合中删除图片名称
                jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES,picName);
                System.out.println("自定义任务执行,清理垃圾图片:"+picName);
            }
        }
    }
}
